package com.sky.service.impl;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.sky.constant.MessageConstant;
import com.sky.dto.UserLoginDTO;
import com.sky.entity.User;
import com.sky.exception.LoginFailedException;
import com.sky.mapper.UserMapper;
import com.sky.properties.WeChatProperties;
import com.sky.service.UserService;
import com.sky.utils.HttpClientUtil;
import lombok.extern.slf4j.Slf4j;
import org.apache.http.impl.client.HttpClients;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import javax.security.auth.login.LoginException;
import java.time.LocalDateTime;
import java.util.HashMap;
import java.util.Map;

@Service
@Slf4j
public class UserServiceImpl implements UserService {
    @Autowired
    private WeChatProperties weChatProperties;
    @Autowired
    private UserMapper userMapper;
    public static final String WX_Login = "https://api.weixin.qq.com/sns/jscode2session";
    public User wxlogin(UserLoginDTO userLoginDTO) {
        log.info("微信登录，数据：{}", userLoginDTO);
        String openid = getOpenId(userLoginDTO.getCode());

        if (openid == null){
            throw new LoginFailedException(MessageConstant.LOGIN_FAILED);
        }
        User byOpenid = userMapper.getByOpenid(openid);
        if (byOpenid == null){
            byOpenid = User.builder()
                    .openid(openid)
                    .createTime(LocalDateTime.now())
                    .build();
            userMapper.insert(byOpenid);
        }
        return byOpenid;
    }
    private String getOpenId(String code){
        Map<String, String> map = new HashMap<>();
        map.put("appid", weChatProperties.getAppid());
        map.put("secret", weChatProperties.getSecret());
        map.put("js_code", code);
        map.put("grant_type", "authorization_code");
        String token = HttpClientUtil.doGet(WX_Login,map);

        JSONObject jsonObject = JSON.parseObject(token);
        String openid = jsonObject.getString("openid");
        return openid;
    }
}
